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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated PR1501G-T

Name: PR1501G-T
Brand: Diodes Incorporated
SKU: PR1501G-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PR1501G-T

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: PR1501G-T.pdf

Description:: DIODE GEN PURP 50V 1.5A DO15

Quantity:: RFQ Add To RFQ list

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Inventory:3,517

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Product details

Overview

PR1501G-T from Diodes Incorporated is a 1.5A fast recovery glass passivated rectifier diode in DO-15 package, rated for 50V peak repetitive reverse voltage, 1.3V forward voltage at 1.5A, and 150ns reverse recovery time; used in AC/DC input stage rectification of low-voltage power supplies for consumer adapters and industrial control modules.

For engineers reviewing the PR1501G-T datasheet, PR1501G-T pinout, PR1501G-T application, or PR1501G-T equivalent, key selection criteria include its 50V V_RRM, 50A non-repetitive surge rating, 65°C/W thermal resistance, low 5μA reverse leakage at 25°C, and DO-15 mechanical compatibility with legacy through-hole board layouts.

Technical Context

This device operates as a single-phase, half-wave rectifier under 60Hz resistive or inductive loads, with derating required for capacitive loads (−20% current). Its glass passivated junction ensures stable performance across −65°C to +150°C operating range.

The 150ns reverse recovery time and 25pF typical junction capacitance support efficient switching in offline SMPS input stages up to ~100kHz, while the 1.3V V_FM minimizes conduction loss at 1.5A average output current.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking voltage before breakdown; defines safe AC input peak handling capability.
I_O	1.5 A - Average rectified current at 55°C ambient; sets continuous DC output capability in standard heatsink-free layout.
V_FM	1.3 V @ 1.5A - Forward voltage drop determining conduction loss and thermal dissipation in linear rectifier operation.
t_rr	150 ns - Reverse recovery time defining switching speed limit and EMI generation in high-frequency rectification.
I_FSM	50 A - Non-repetitive surge current rating for 8.3ms half-sine; supports inrush tolerance during power-up.
R_θJA	65 °C/W - Junction-to-ambient thermal resistance; determines temperature rise above ambient at given power dissipation.
I_RM	5 μA @ 25°C - Reverse leakage current at rated DC blocking voltage; impacts standby power loss in low-power systems.

Pinout & Package

DO-15 molded plastic package with axial leads, cathode band marking, tin-plated solderable terminals, UL 94V-0 flammability rating, and moisture sensitivity level 1 per J-STD-020C.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for positive half-cycle conduction	Connected to AC source or transformer secondary; carries full load current during forward bias.
Cathode	Output terminal for rectified DC path	Connected to filter capacitor or downstream regulator; marked by visible band on body.

Key Features

Feature	Design Value
Glass passivated die construction	Enhances long-term reliability and humidity resistance vs. epoxy-passivated alternatives in humid environments.
Fast switching (150ns t_rr)	Reduces switching losses and improves efficiency in higher-frequency rectifier applications up to 100kHz.
50A surge rating	Withstands repeated cold-start inrush currents without degradation in adapter and motor-control power supplies.
Low 5μA reverse leakage	Minimizes standby power consumption in energy-sensitive battery-backed or IoT edge devices.

Applications

AC/DC Wall Adapters

Industrial Control Power Supplies

Use Scenario: Rectifying 12VAC transformer output in compact 5–12V DC wall adapters for consumer electronics.

IC Role / Device Role / Timing Role: Primary-side unidirectional current switch converting AC input to pulsating DC prior to filtering.

Use Value: 1.3V V_FM limits conduction loss to <1.95W at 1.5A, enabling thermally constrained PCB layouts without heatsinks.

Use Scenario: Input rectification in DIN-rail mounted 24VDC power modules for PLC I/O modules and sensor interfaces.

IC Role / Device Role / Timing Role: High-reliability mains-input rectifier supporting wide ambient temperature range (−40°C to +70°C).

Use Value: −65°C to +150°C operating range and 65°C/W R_θJA ensure stable operation under industrial thermal cycling stress.

LED Driver Input Stages

Small Motor Drive Power Inputs

Use Scenario: Bridge rectification in non-isolated LED driver circuits powering streetlight or signage modules.

IC Role / Device Role / Timing Role: Half-wave or full-wave rectifier element in low-cost constant-current driver front-end.

Use Value: 150ns t_rr suppresses high-frequency ringing during commutation, reducing EMI filter component count.

Use Scenario: DC bus rectification in brushed DC motor controllers for HVAC actuators and office automation devices.

IC Role / Device Role / Timing Role: Surge-tolerant rectifier handling back-EMF transients and start-up surges.

Use Value: 50A I_FSM rating accommodates 10× stall current peaks without parametric shift or failure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast recovery rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4001-T	Slower t_rr (≤30μs), higher V_F (1.1V @ 1A), lower I_FSM (30A)	Not suitable for >10kHz switching; limited surge margin in motor drive inputs	Select only for low-frequency, cost-sensitive, non-surge-critical applications
FR101-T	Faster t_rr (150ns same), identical V_RRM/I_O, but DO-41 package	Requires footprint redesign; lower thermal mass affects transient thermal response	Prefer when board space allows DO-41 and lead pitch matches existing tooling

Compared with 1N4001-T and FR101-T, PR1501G-T uniquely balances 50V/1.5A rating, 150ns speed, and DO-15 mechanical robustness-making it optimal for space-constrained, moderate-frequency rectifiers needing proven surge resilience.

Availability

PR1501G-T is available at Aetrix Electronics and suitable for AC/DC wall adapters, industrial control power supplies, LED driver input stages, and small motor drive power inputs requiring stable component supply and long-lifecycle availability.

Supply support for PR1501G-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, serving automotive, industrial, computing, and consumer markets with high-reliability components.

The PR1501G-T belongs to Diodes' fast recovery rectifier product line, designed specifically for cost-effective, high-efficiency AC/DC conversion in space- and thermal-constrained power supplies.

FAQ

Is PR1501G-T RoHS compliant?

Yes, PR1501G-T features lead-free finish and complies with RoHS Directive 2011/65/EU, including exemptions for glass and high-temperature solder per Annex Notes 5 and 7. Tin-plated leads meet MIL-STD-202 Method 208 solderability requirements.

What is the maximum operating temperature for PR1501G-T?

The PR1501G-T has an operating junction temperature range of −65°C to +150°C. At 55°C ambient, it delivers full 1.5A average output current; derating begins above that point per Figure 1 in the datasheet.

Can PR1501G-T replace 1N4001 in existing designs?

PR1501G-T can replace 1N4001 where faster recovery (150ns vs. ≤30μs), lower leakage (5μA vs. 50μA), and higher surge rating (50A vs. 30A) are beneficial-but requires verification of DO-15 footprint compatibility and thermal performance under actual load conditions.

Why is PR1501G-T marked "NOT RECOMMENDED FOR NEW DESIGN"?

Diodes Incorporated designates PR1501G-T as not recommended for new designs due to newer alternatives offering improved efficiency or smaller footprints; however, it remains fully supported for legacy production, repair, and maintenance with active manufacturing and full datasheet documentation.

PR1501G-T Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1.5 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 50 V

Capacitance @ Vr, F:: 25pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-15

Operating Temperature - Junction:: -65°C ~ 150°C

PR1501G-T FAQ

1.How can I place an order for PR1501G-T through Aetrix?

Please submit a Request for Quotation (RFQ) for PR1501G-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PR1501G-T reliable?

The price and inventory of PR1501G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1501G-T is usually 5 days.

3.What payment methods are accepted for PR1501G-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1501G-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PR1501G-T?

PR1501G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PR1501G-T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PR1501G-T?

For technical support, including PR1501G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1501G-T requirements.

6.How does Aetrix verify that PR1501G-T is sourced from the original manufacturer or authorized distributors?

All PR1501G-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PR1501G-T meets industry standards.

7.What is the process for return or replacement of PR1501G-T?

All PR1501G-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1501G-T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PR1501G-T part is unused and in its original packaging.

Return procedure for PR1501G-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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